Installation Sheet

ManualsBrandsEemax ManualsAppliancesAccuMix II: 6.5kW 240V Electric Tankless Water Heater

INSTALLATION GUIDE AND OWNER’S MANUAL

LavAdvantage™, AccuMix II™, & FlowCo™

ELECTRIC INSTANTANEOUS WATER HEATERS

Read and understand the instructions thoroughly before attempting the installation or service of the water heater. Failure to follow

the instructions can result in serious injury, death and/or property damage. The warranty of the water heater will depend upon

proper installation according to the instructions. Some heaters come supplied with separate faucet aerators. If supplied, the aerator

must be installed in the faucet for optimum performance. The heater must only be used to heat water and must be installed in a

location where it is not subject to freezing temperatures. The manufacturer is not liable for any damages resulting from improper

installation or misuse.

The installation must conform to the latest requirements of the National Electrical Code and all applicable state and local codes. This

information is available through local authorities. You must fully understand the requirements before beginning this installation.

This water heater is not required by UL 499 to employ a temperature and pressure relief valve (T&P). Check with local codes to find

out if one is required. If it is, the T&P valve must be installed in the outlet hot water pipe between the heater and the isolation valve.

BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THE HEATER, MAKE SURE THE

ELECTRICAL POWER IS DISCONNECTED.

Summary of content (14 pages)

PAGE 1
INSTALLATION GUIDE AND OWNER’S MANUAL LavAdvantage™, AccuMix II™, & FlowCo™ ELECTRIC INSTANTANEOUS WATER HEATERS BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THE HEATER, MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED. Read and understand the instructions thoroughly before attempting the installation or service of the water heater. Failure to follow the instructions can result in serious injury, death and/or property damage.
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EX07200-121 Rev A IMPORTANT SAFETY INSTRUCTIONS When using electrical equipment, basic safety precautions should always be followed, including the following: READ AND FOLLOW ALL INSTRUCTIONS Supply the water heater only from a grounded system. A green terminal (or a wire connector marked “G”, “GR, “Ground”, or “GROUNDING”) is provided for wiring the appliance.
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EX07200-121 Rev A GENERAL Eemax® offers thermostatic, thermostatic with an integrated mixing valve, and non-thermostatic tankless electric water heaters. To obtain optimum performance and energy savings, the water heater should be located as close as possible to the point-of-use. The unit is supplied with compression rings and nuts suitable for direct coupling to 3/8” copper or PEX™ piping. Do not use additional screwed fittings, pipe dope or teflon tape – doing so will void the warranty.
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EX07200-121 Rev A Remove the cover and fasten to the wall using the mounting holes at each corner of the back plate. Replace the cover. FlowCo LavAdvantage AccuMix II PLUMBING HOOK-UP The water heater is supplied with 3/8” brass compression fittings that are compatible with either copper or plastic pipes. Make sure these fittings are used for this installation. Contact your Eemax representative for further information.
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EX07200-121 Rev A Clean screen periodically for best performance. BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THIS HEATER, MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED. The heater’s water INLET and OUTLET are labeled. Install full flow ball valves to the inlet and outlet pipes and run water through the inlet pipe into a bucket to purge it of any debris. Close the inlet ball valve. *Failure to do so may clog the inlet water screen.
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EX07200-121 Rev A Open the hot water faucet and run water for a minimum of 60 seconds and until the flow is continuous and free of air pockets. Close the faucet and install the aerator (if supplied). Failure to install aerator will result in less-than-favorable heater performance.
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EX07200-121 Rev A Refer to the chart below for recommended copper wiring for conductors with a temperature rating of 75°C: FlowCo LavAdvantage AccuMix II SPEX1812 SPEX2412 SPEX3012 SPEX3512 SPEX35 SPEX48 SPEX55 SPEX65 SPEX75 SPEX95 SPEX3208 SPEX4208 SPEX8208 SPEX3277 SPEX4277 SPEX60 SPEX80 SPEX90 SPEX100 SPEX1812T SPEX2412T SPEX3012T SPEX3512T SPEX35T SPEX48T SPEX55T SPEX65T SPEX75T SPEX95T SPEX012240T SPEX3208T SPEX4208T SPEX8208T SPEX3277T SPEX4277T SPEX60T SPEX80T SPEX90T SPEX100T AM004120T AM00524
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EX07200-121 Rev A Optional: AccuMix II heaters comes preset in silent mode. If silent mode is the intended use, please proceed to step 4. To switch between silent and non-silent operation place the jumper on the control board in position “D”. Leave the breaker in the “OFF” position.
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EX07200-121 Rev A After the 60 seconds in step 4, the display will show the temperature setpoint. See The heater is commissioned at this point. Faucet can be turned off and used as needed. Note: the temperature display will turn off after 5 minutes of inactivity. Display turns on when water flows through heater. FLOWCO The InfoCue™ will flash rapidly while water flows through the unit. Maintain flow. After 15 seconds, the InfoCue will turn solid red and there will be an audible click.
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EX07200-121 Rev A BASE MODEL* SPEX1812 SPEX2412 SPEX3012 SPEX3512 SPEX35 SPEX48 SPEX55 SPEX65 SPEX75 SPEX95 SPEX3208 SPEX4208 SPEX8208 SPEX3277 SPEX4277 SPEX60 SPEX80 SPEX90 SPEX100 FLOW RATE, GPM (LPM) 0.2 (0.76) 0.25 (0.95) TEMPERATURE RISE, °F (°C) 61 (34) 49 (27) 82 (46) 66 (37) 82 (46) 82 (46) 82 (46) - 0.3 (1.14) 0.4 (1.51) 0.5 (1.89) 0.7 (2.65) 0.8 (3.03) 1 (3.
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EX07200-121 Rev A ERROR CODES & UNITS From Advanced Menu, press and hold the “+” and “–“ buttons for 10 seconds. Screen Info Current Error(s) Past Errors Units Non-Silent Mode Title CE PE UN NS Description Any errors currently present (F0 displays if no errors are present) Previous 5 errors and faults Choose between °F/GPM and °C/LPM Toggle non-silent operation Pressing “-“ at any time will display screen title (CE, PE1-5, UN, ECO).
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EX07200-121 Rev A TROUBLESHOOTING ENSURE POWER TO THE UNIT IS “OFF” BEFORE REMOVING THE PROTECTIVE COVER FOR ANY REASON. For status resolution, please consult the table for your heater model below.
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EX07200-121 Rev A Two flashes once, three second pause Low heat - outlet temperature below 90°F/32°C for 5 seconds of flow - element failure - ECO tripped/malfunctioning - relay/contactor malfunctioning - control board failure - inlet water supply out of spec - outlet thermistor interrupted or disconnected Two flashes twice, three second pause Outlet thermistor failure Two flashes three times, three second pause Over-temperature Warning - outlet temperature exceeds 110°F/38°C Three flashes once, th
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EX07200-121 Rev A REPLACEMENT PART NUMBERS COMPRESSION FITTINGS 3/8” NUT 3/8” SLEEVE AERATORS 0.35 GPM 0.5 GPM EX68B EX68C Energy Cut-Off (ECO) LavAdvantage (by suffix) Base, ML EE S EX278A-KIT EX278E-KIT EX278D-KIT AccuMix II Base EX278A-KIT FlowCo Base CA EX278A-KIT EX08100-03-KIT EX0061-0.3-AER EX0061-0.